| 1 | using System.Linq;
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| 2 | using HeuristicLab.Common;
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| 3 | using HeuristicLab.Core;
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| 4 | using HeuristicLab.Data;
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| 5 | using HeuristicLab.Operators;
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| 6 | using HeuristicLab.Optimization;
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| 7 | using HeuristicLab.Parameters;
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| 8 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
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| 9 |
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| 10 | namespace HeuristicLab.Problems.MetaOptimization {
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| 11 | /// <summary>
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| 12 | /// TODO
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| 13 | /// </summary>
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| 14 | [Item("PMOBestSolutionHistoryAnalyzer", "")]
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| 15 | [StorableClass]
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| 16 | public sealed class PMOBestSolutionHistoryAnalyzer : SingleSuccessorOperator, IAnalyzer {
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| 17 |
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| 18 | public bool EnabledByDefault {
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| 19 | get { return true; }
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| 20 | }
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| 21 |
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| 22 | public ScopeTreeLookupParameter<ParameterConfigurationTree> ParameterConfigurationParameter {
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| 23 | get { return (ScopeTreeLookupParameter<ParameterConfigurationTree>)Parameters["ParameterConfigurationTree"]; }
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| 24 | }
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| 25 | public ScopeTreeLookupParameter<DoubleValue> QualityParameter {
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| 26 | get { return (ScopeTreeLookupParameter<DoubleValue>)Parameters["Quality"]; }
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| 27 | }
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| 28 | public ValueLookupParameter<ResultCollection> ResultsParameter {
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| 29 | get { return (ValueLookupParameter<ResultCollection>)Parameters["Results"]; }
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| 30 | }
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| 31 | public LookupParameter<ConstrainedItemList<IProblem>> ProblemsParameter {
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| 32 | get { return (LookupParameter<ConstrainedItemList<IProblem>>)Parameters[MetaOptimizationProblem.ProblemsParameterName]; }
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| 33 | }
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| 34 | public LookupParameter<IntValue> GenerationsParameter {
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| 35 | get { return (LookupParameter<IntValue>)Parameters["Generations"]; }
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| 36 | }
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| 37 | public LookupParameter<BoolValue> MaximizationParameter {
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| 38 | get { return (LookupParameter<BoolValue>)Parameters["Maximization"]; }
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| 39 | }
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| 40 |
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| 41 | public PMOBestSolutionHistoryAnalyzer()
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| 42 | : base() {
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| 43 | Parameters.Add(new ScopeTreeLookupParameter<ParameterConfigurationTree>("ParameterConfigurationTree", ""));
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| 44 | Parameters.Add(new ScopeTreeLookupParameter<DoubleValue>("Quality", ""));
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| 45 | Parameters.Add(new ValueLookupParameter<ResultCollection>("Results", ""));
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| 46 | Parameters.Add(new LookupParameter<ConstrainedItemList<IProblem>>(MetaOptimizationProblem.ProblemsParameterName));
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| 47 | Parameters.Add(new LookupParameter<IntValue>("Generations", ""));
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| 48 | Parameters.Add(new LookupParameter<BoolValue>("Maximization", "Set to false if the problem should be minimized."));
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| 49 | }
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| 50 |
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| 51 | [StorableConstructor]
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| 52 | private PMOBestSolutionHistoryAnalyzer(bool deserializing) : base(deserializing) { }
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| 53 | private PMOBestSolutionHistoryAnalyzer(PMOBestSolutionHistoryAnalyzer original, Cloner cloner) : base(original, cloner) { }
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| 54 | public override IDeepCloneable Clone(Cloner cloner) {
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| 55 | return new PMOBestSolutionHistoryAnalyzer(this, cloner);
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| 56 | }
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| 57 |
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| 58 | public override IOperation Apply() {
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| 59 | ItemArray<DoubleValue> qualities = QualityParameter.ActualValue;
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| 60 | ResultCollection results = ResultsParameter.ActualValue;
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| 61 | ItemArray<ParameterConfigurationTree> parameterTrees = ParameterConfigurationParameter.ActualValue;
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| 62 | int currentGeneration = GenerationsParameter.ActualValue.Value;
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| 63 | bool maximization = MaximizationParameter.ActualValue.Value;
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| 64 |
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| 65 | int idxBest;
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| 66 | if (maximization)
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| 67 | idxBest = qualities.Select((x, index) => new { index, x.Value }).OrderBy(x => x.Value).Last().index;
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| 68 | else
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| 69 | idxBest = qualities.Select((x, index) => new { index, x.Value }).OrderBy(x => x.Value).First().index;
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| 70 |
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| 71 | ParameterConfigurationTree best = parameterTrees[idxBest];
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| 72 |
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| 73 | string key = "BestSolutionHistory";
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| 74 | RunCollection bestSolutionHistory;
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| 75 | if (!results.ContainsKey(key)) {
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| 76 | bestSolutionHistory = new RunCollection();
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| 77 | results.Add(new Result(key, bestSolutionHistory));
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| 78 | } else {
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| 79 | bestSolutionHistory = results[key].Value as RunCollection;
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| 80 | }
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| 81 | if (bestSolutionHistory.Count == 0 || best.ParameterInfoString != ((StringValue)bestSolutionHistory.Last().Results["Meta-ParameterInfoString"]).Value) {
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| 82 | IRun run = best.ToRun(string.Format("{0}: {1}", currentGeneration, best.ParameterInfoString), false);
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| 83 | run.Results.Add("Meta-Generation", new IntValue(currentGeneration));
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| 84 | run.Results.Add("Meta-ParameterInfoString", new StringValue(best.ParameterInfoString));
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| 85 | bestSolutionHistory.Add(run);
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| 86 | }
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| 87 |
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| 88 | return base.Apply();
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| 89 | }
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| 90 | }
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| 91 | }
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